Again and again, and forever and ever. Ben Wagnerâ€™s Forever Rainbow design is now available as a Tattly! Wear your pride on your sleeve. (Or ankle, or hand, or whereverâ€¦) Size: 2" x 1.5" Tattly are safe and non-toxic, lasting on average 2-4 days. We suggest placing on oil-free areas where skin does not stretch and keep them clean!